MESON Chess Problem Database

Problem Display
PID: 129874 (7n/2Q5/4k1p1/2p2NPn/2p5/2KP1B2/8/8 w - - 0 1)

Smutny, Jan

Nove parizske mody, 1899

7n/2Q5/4k1p1/2p2NPn/2p5/2KP1B2/8/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sg3
      • 2.Sg7#
    • 1...Sf4
      • 2.Sg7#
    • 1...Sf6
      • 2.Sg7#
    • 1...Sg7
      • 2.Sxg7#
  • Tries
    • 1.Se3?
      • threat
        • 2.Bg4#
        • 2.Bd5#
      • 1...Sg3
        • 2.Bd5#
      • 1...Sf4
        • 2.Bg4#
      • 1...Sg7
        • 2.Bd5#
      • 1...Sf6!
    • 1.Bd5+?
      • 1...Kxd5
        • 2.Qd6#
      • 1...Kxf5!
    • 1.Qc8+?
      • 1...Kf7
        • 2.Bd5#
      • 1...Ke5!
  • Keys
    • 1.d4!
      • 1...cxd4+
        • 2.Sxd4#
      • 1...Kxf5
        • 2.Qe5#
      • 1...gxf5
        • 2.d5#
      • 1...Sg3
        • 2.Sg7#
      • 1...Sf4
        • 2.Sg7#
      • 1...Sf6
        • 2.Sg7#
      • 1...Sg7
        • 2.Sxg7#
      • 1...Sf7
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::S(D)
    • S(c);N_GUARD::S(D),XS(c)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::B(C)
      • Refutation
        • S(c);
    • Try
      • B(C);CHECK
      • Vars
        • K(d);S_FLIGHT,XB(C)::QAR1(F)
      • Refutation
        • K(d);S_FLIGHT,XS(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::B(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • P(B);
    • Vars
      • P(b);CHECK,XP(B)::S(D),XP(b)
      • K(d);S_FLIGHT,XS(D)::QAR1(F)
      • P(e);SBLOCK,XS(D)::P(B)
      • S(c);N_GUARD::S(D)
      • S(c);N_GUARD::S(D),XS(c)
      • S(f);SBLOCK::QAB(F)
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